, Volume 18, Issue 1, pp 79–85 | Cite as

Modes of synoptic development within the Polar Basin

  • LeDrew Ellsworth F. 


The patterns of advective development are classified for twelve synoptic sequences in the Polar Basin during the June through October interval of 1979. The intent is to develop models of the advective contribution to synoptic evolution.

Fifteen categories are derived from 94 cases. Five are significant classes in that they represent at least 6 members each. While there is a predominance of patterns which are interpreted as weakening or occuluded, there are significant examples of intensification and frontogenesis within the Basin. One case is over the central Arctic Ocean. In other classes, there is development as a result of radiative or diabatic influences despite the frontolyic nature of the advective patterns.

This is the first attempt to classify synoptic systems on the basis of a dynamic index, in contrast to pressure patterns. This approach provides new insight into the processes responsible for the evolution of the systems.


Environmental Management Arctic Ocean Significant Classis Pressure Pattern Dynamic Index 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

List of symbols


specific heat of dry air


acceleration due to gravity


diabatic heating rate




gas constant


geostrophic wind velocity


vertical velocity


static stability


Criolis parameter


geopotential height


approximate vertical velocity — omega


density of air


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Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • LeDrew Ellsworth F. 
    • 1
  1. 1.Department of GeographyUniversity of WaterlooWaterlooCanada

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